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# C3 Trig - Tricky?! Watch

1. (Original post by Mr M)
I don't want to answer that question as it will reinforce your misconception.

The integral of u^2 is meaningless.

The integral of u^2 du is u^3/3.

The du bit isn't just there to look pretty, it is as vital as putting your trousers on when you go to the shops.

lol, nice analogy so I should just put u back in and that's all..
2. (Original post by asem93)
Okay so the integral of u^2 is u^3/3 but what is the int of du??
As I suggest at every opportunity to everyone, I suggest you watch these videos.
there's one of the integration videos that spends about 10 minutes on integration intuition. might help with your understanding.
3. (Original post by TimmonaPortella)
As I suggest at every opportunity to everyone, I suggest you watch these videos.
there's one of the integration videos that spends about 10 minutes on integration intuition. might help with your understanding.
thanks

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